Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:c69af219-74ad-6257-9e9e-09f371e3b21e 2026-09-21T13:36:20-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services UMC: YEN HUNG YU (VP) Filed a Form 3, Becoming a Registered Insider at UNITED MICROELECTRONICS CORP With Initial Direct Holdings of 339,682 urn:uuid:3c501920-0185-e0c2-2548-8c5b8f11204a 2026-09-18T06:14:36-04:00 UMC: LIU CHITUNG (CFO,VP) Acquired (JB) 1mm Shares of UNITED MICROELECTRONICS CORP for $0.00 on 9/7 urn:uuid:d36c0afa-d6c8-4ecf-0cb4-30ff835c3b57 2026-09-08T06:01:10-04:00 UMC: LIU CHITUNG (CFO,VP) Disposed (JS) 1mm Shares of UNITED MICROELECTRONICS CORP for $0.00 on 9/7 urn:uuid:4445b061-5056-9e0b-95b6-41f3f42a4a3d 2026-09-08T06:01:10-04:00 UMC: LIU CHITUNG (CFO,VP) Sold (S) 1.9mm Shares of UNITED MICROELECTRONICS CORP for $154.89 on 7/13 urn:uuid:c291ed60-44d9-5c5b-b16f-fd94863d7af0 2026-07-13T06:04:27-04:00 UMC: HU CHE JEN (VP) Sold (S) 10k Shares of UNITED MICROELECTRONICS CORP for $171.30 on 6/30 urn:uuid:0f9e5fda-0e72-cb4b-001f-af3283dc7c56 2026-06-30T21:48:56-04:00 UMC: TAN WEN YI (VP) Filed a Form 3, Becoming a Registered Insider at UNITED MICROELECTRONICS CORP With Initial Direct Holdings of 650,600 urn:uuid:63e26a58-8d59-d859-5a85-91d7b10d9658 2026-05-07T06:27:17-04:00 UMC: LU CHIA AO (VP) Filed a Form 3, Becoming a Registered Insider at UNITED MICROELECTRONICS CORP With Initial Direct Holdings of 170k urn:uuid:75ef6ae4-c94c-0b26-2fbc-5fdf34d1eccf 2026-05-07T06:26:12-04:00 UMC: LIAO CHING YU (GC,VP) Filed a Form 3, Becoming a Registered Insider at UNITED MICROELECTRONICS CORP With Initial Direct Holdings of 732,480 urn:uuid:c674a0ac-cc44-3032-e88b-06ceb9c99ba0 2026-05-07T06:25:11-04:00 UMC: CHEN JIN SHUANG (VP) Filed a Form 3, Becoming a Registered Insider at UNITED MICROELECTRONICS CORP With Initial Direct Holdings of 2.3mm urn:uuid:bd025a5b-20d2-b288-0f7a-4de037a2dafb 2026-05-07T06:24:08-04:00 UMC: KUO LIN WU (VP) Filed a Form 3, Becoming a Registered Insider at UNITED MICROELECTRONICS CORP With Initial Direct Holdings of 913,080 urn:uuid:49ba6e8f-474a-aef6-fef7-823f408c7f80 2026-05-07T06:23:05-04:00